The Bubble Nebula Wide Field v0.2
14/10/2007 (20:26) by Petri KehusmaaThis is the start of my ‘Bubble Nebula Wide Field’ -project. My goal is to take very long Ha exposure and at least 1 hour of each color channel (RGB). This is 170 minutes of Ha. Taken with TMB80 APO with TV 0.8 fr/ff and STL-11K-C2 CCD.
